Got some good advice and used it. Thanks Doc! I honed on chosera 1k, 5k. Then broke 2 very light tomo slurries. Less than 5 minutes, finished on water only 20 laps. Perfect edge and shave. No fuss no muss. So far nakayama asagi mizu, shuobodani and ozuku got the same result. It sounded too easy but he was right. Try it is all I will say.